> to put a comment describing the acpi binding in the code or need somewhere else?

The concern here is that we are simply trying to replicate the DTbinding here, especially replacing the CPU phandles with MPIDRs.I am not an expert in the ACPI bindings, but I prefer ACPIphandle reference to the CPUs (which is much simpler) toMPIDRs (which is not that intuitive). And this is the same messagethat I got from our ACPI folks.

Irrespective of what we end up with, this must be part of the "ACPI bindings" document here :